Piston and cylinder lubricator.



I W. F. BAKER. PISTON AND CYLINDER LUBRICATOR. APPLICATION FILED APR. 9, 1918.

1,288,800. I atented Dec. 24,1918.

VV/TNESS UNITED STATES PATEi Qu nton.

WILLIAM F. BAKER, OF KANSAS CITY, MISSOURL A SSIGNOB OF THIRTY-FIVE ONE- HUNDBEDTHS TO LULU BAKER, TIIIRTY'ONE-HUNDREDTHS '10 JOHN A. KEISTER', AND THIRTY ONE-HUNDREDTHS T0 JOHN M. WILSON, ALL OF KANSAS CITY, MIS- SOURI.

PISTON AND CYLINDER LUBRICA'LOR.

Specification of Letters Patent.

Patented Dec. 24, 1918.

Application filed April 9, 1918. Serial No. 227,424.

To all whom it may concern:

Be it known that I, WILLIAM F. BAKER, a citizen of the United States, residing at Kansas City, in the county of'Jackson and State of Missouri, have invented certain new and useful Improvement in Piston and Cylinder Lubricators, of which the follow.- inglis a specification. I

y invention relates to improvements in piston and cylinder lubricators.

My invention is particularly adapted for advantageous use in explosive engines of the V-type having inclined cylinders, although itlis well adapted for use on either vertical or horizontal engines.

In engines having inclined cylinders, the upper side of the piston and the upper inner side of thecylinder is liable to run dry, thereby causing undue heating and Wear.

The object of my invention is to provide lubricating means with which a plentiful siipply of oil may be evenly distributed over the wearing sur aces of the piston and cylinder. p

My invention provides further a novel lubricating piston ring adapted for ready application to and removal from a piston.

, My invention provides still further a novel lubricating ring adapted for ready application to or removal from the inner wall of a cylinder.

Other novel features of my invention are hereinafter fully described and claimed.

"In the accompanying drawing, which illustrates my invention, in its preferred e1nbodiment, as applied to an inclined cylinder and piston,

Figure 1 is a view partly in side elevation and partly in vertical section of an'inclined cylinder and piston provided with my improvement.

Fig.2 is an edge view of my improved lubricating piston ring.

Fig. 3 is an edge view of my lubricating cylinder ring.

Fig. 4 is a cross section on theline l -i. of Fig.

Fig. 5 is a cross sect-ion on the linc 5-5 of Fig. 2. i i

p F igs. 6 and 7 are outside views of the piston and cylinder lubricating rings respec tively.

improved 4 are beveled so are the ends of the divided ring of felt 7. By means of this construction the joint at Similar reference characters designate similar parts in the different views.

1 designates 'an inclined cylinder of an explosive engine of the usual V type. 2

designates a piston reciprocative in the cylinder 1 and which is provided with the usual piston rings 3.

The cylinderfl near its lower end is provided with. an inner annular peripheral groove 4, which is ada-pted'to communicate with an annular peripheral groove 5 on the piston 2, when the latter is at its limit of downward movement, as shown in Fig. l. Preferably the groove 4 is located below the lower limit of travel of the outer or lower piston ring 3. The groove 5 is located below or at the outer side of the lowermost piston rin 3.

The function 'of the grooves 4 and 5 is' to carry oil from the lower to the upper side of the piston 2 to prevent the upper side of the piston and the inner upper side of the cylinder from running dry, and to effect an equal distribution of the oil on the piston and bearing surfaces of'the cylinder.

In order that the oil may be freely carried, in the grooves 4 and 5, from the lower side of the piston where there is usually an abundance 'of oil, I provide for insertion respectively in the piston and cylinder grooves 7rand two lubricating devices shown in Figs. 2 to 7 comprising two-transverse-1y divided channeled rings containing a suitable absorbent material, such as felt.

The lubricating device, which is fitted in the groove!) of the piston, and shown in Figs 2, 4 and 6, comprises a transversely divided ring 6 provided with an outer peripheral l'lLlll10l -\\'lllCll is filled with an absorbent material 7, such as felt, which extends outwardly beyond. the outer side of the ring (5, and which bears against the cylinder 1.

As shownv in Fig. 6, the ends of the ring 6 as to overlap each other, as

the ends of the ring broken, insuring a distribution of oil over the entire circumference of theryhnder wall.

The lubricating device which is fitted in the roove l-of the cylinder 1 comprises a transversely divided ring 8, which is provided with an inner peripheral channel filled with an absorbent material 9, such asfelt which bears against the piston 2. 5 As shown in Fig. 7, the ends of the ring 8 are beveled, so as to overla each other, as are also the ends of the fet'ring 9. This construction insures distribution of oil all around the piston.

The rings 6 and 8 are, preferably, of some resilient material, brass, The felt 9 extends inwardly beyond the inner side of the ring 8, as shown in Figs. 3 and 4. The inner edges of the chain nel ring 8 do not reach the piston 2rand the outer edges of the channel ring 6 do not reach the cylinder, thus avoiding any scratching or scoring of the piston or cylinder. I

In applyin thering 8', it is compressed sufficiently to: permit its insertion into the cylinder and then permitted to expand into the groove 4. The ring 6 is compressed so as to enter the cylinder 1 after being placed in the groove 5, after which it is permitted to expand so that the felt 7 bears against the .cylinder.

Oil upon the lower inner side inder will enter the felt 7 and 9 absorbed thereby will be carriedby capillary attraction around the piston 2. The felt 7 carried by the piston will carry the oil upwardly and willefi'ect. an equal distribution of the oil over the cylinder, While the felt 9 will effect an even distribution of the oil over the piston 2. 1

do" not limitimy invention to thestructure shown and described, within'the scope of the maybe inade without departing from the spirit of my invention.

What I claim is 1. A cylinder having an inner annular peripheral groove, a, piston reciprocative in said cylinder and having a piston iing, the groove being located doutside the limit of travel of the ring, and porous absorbent material in saidgroove bearing against said of the cyl-' 2. A cylinder having an inner annular peripheral groove, a pistonreciprocative in the cylinder, a transversely divided ring mounted in said groove and having an inner peripheral channel, and porous absorbent material in said channel bearing against said piston. 1

3. A cylinder having an inner annular peripheral groove, a piston reciprocative in the cylinder, a transversely dividedring in said groove having an inner peripheral I channel, and porous absorbent material in said channel and extending inwardly be-' yond the inner edge of the ring and bearing against said piston.

I 66 4. A cylinder lubricating device comprisgreater than a semicircle,

such as sheet steel or,

and being I the cylinder as modifications, appended claims;

I fitted in the piston groOveFand havin inner peripheral c annel, and porous absorbent material filling said channel and'extending inwardly beyond the inner side of the ring.- r

5. A cylinder lubricating device comprising a transversely divided ring comprising a single member having a circumference having a peripheral channel on its outer side, and porous absorbent material filling said channel and extending outwardly beyond the outer side of the ring. I

6. A cylinder lubricating device comprising a transversely divided ring having bev 80 'eled ends adapted to overlap each other and having an inner peripheral channel, and porous absorbent material filling said channel and extending inwardlybeyond the inner sideof said ring.

7. A- cylinder lubricating device com 'rising a transversely divided ring having eV- eled ends adapted to overlap each other and having-an outer peripheral channel,.and porous absorbent material filling saidchanno] and extending outwardly beyond the outer side of said ring.

8. A cylinder havinganinner annularf" peripheral groove, a piston reciprocative in and having a peripheral annular groove adapted in the movement of the piston to communicate with the. groove in the cylinder, and porous absorbent ma terial in both of said grooves for carrying oil around the piston. I 9. A cylinder having an inner annular peripheral groove, a piston reciprocative in the cylinder and hzfving a; peripheral groove, a transverselv divided ring fitted in the cylinder groove and having an inner periphs eral channel, a transversely divided ring an outer peripheral channel,"porous absor nt material filling the first named ring-and bearing against the piston, and absorbent material filling the second named ring andbearing against the cylinder. I

' '10. A cylinderhaving an inner annular peripheral groove, apiston reciprocativ'e in Y the cylinder, atransversely divided ring in 116 said groove haying an inner peri heral channel and having beveled ends a a ted to overlap each other, and porous absor ent material filling said channel and bearing against said piston.

g 11. A cylinder, a piston reciprocative therein having an annular peripheral groove, a transversely divided ring compris- V ing a si. a member having a circumference greater than a semicircle fitted in said .1223. groove and havingan outer peripheralchan heel, and porous absorbentmaterial filling said channel and bearingagainst said cylfssh therein having an annular peripheral groove, a transversely divided ring fitted in said groove and having an outer peripheral channel and beveled ends adapted to overlap each other, and porous absorbent material filling said channel and bearing against said cylinder.

13. A cylinder having an annular peripheral groove. a transversely divided ring fitted in said groove. a piston reciprocative in said cylinder having an annular peripheral groove adapted on the outstroke ol" the. piston to communicate with the groove in the cylinder. the said ring having an inner peripheral channel. ahsorhent material in said channel hearing against said 1 l -l()ll. a transversely divided ring fitted in the groove in the piston and having an outer peripheralchannel. and porous ahsorlient material in the last named channel hearing against said cylinder.

1.4. A cylinder having an annular inner peripheral groove :1 piston reciproeative in said cylinder having a piston ring and an annular cripheral groove at the outer side of said ring adapted at the end of the outer stroke of the piston to communicate with the first named groove, said first named groovebeing disposed outwardly beyond the limit of movement of the piston ring, and porous absorbent material in both of said grooves and encircling the piston.

15. A cylinder having an inner annular peripheral groove. a piston reciprocative in said cylinder having a pistoirring and an annular peripheral groove at the outer side of said ring adapted to communicate with the cylinder groove on the outstroke of the piston. the cylinder groove heing outwardly ihevond the limit of movement of the piston ring. a transversely divided ring fitted in the cylinder groove and having an inner peripheral channel. ahsorlmnt material filling said channel and hearingagainst said cylinder. a transversely divided ring fitted in the piston groove and having an outer peripheral channel. and porous absorbent material filling the last named channel and hearing against said cylinder.

In testimony whereof I have signed my name to this specification.

\VILLIAM F. BAKER; I 

